An interactive applet and associated web page that provide step-by-step instructions on how to construct
a pentagon inscribed in a circle using only a compass and straightedge.
The method begins with a given circle into which we will inscribe the pentagon.

The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps.

Applet can be enlarged to full screen size for use with a classroom projector.
After use in the classroom, student can access it again from any web browser at home or in the library with no login required.

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
Any opinions, findings, and conclusions or recommendations
expressed in this material are those of the author(s)
and do not necessarily reflect the views of the
National Science Foundation.